Damage to the heart caused by chronic heavy alcohol use is called:
a. alcohol poisoning.
b. alcoholic arrhythmias.
c. alcohol associated cirrhosis.
d. alcoholic cardiomyopathy.
Ans: D
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Indicate whether the statement is true or false
An elementary school teacher wants to know how receptive his students are to new ideas. He decides to present new ideas his students (randomly determined) during arithmetic class or during social studies class. Furthermore, he decides to present these new ideas either just before or just after recess. Which of the following results represents a main effect of type of class?
a. The students always like the new ideas, but only in social studies, regardless of when recess occurs. b. The students never like the new ideas in either class, regardless of when recess occurs. c. The students only like the new ideas after recess. They don't like the new ideas before recess, and the type of class makes no difference. d. The students like the new ideas in social studies after recess but they like the new ideas in arithmetic before recess.
A rating scale should be no more than 10 points EXCEPT for ______.
A. anchored scales B. Likert-type scales C. double-barreled scales D. bipolar scales
Significance tests have two components. They are:
a. size of effect; independence b. independence; dependence c. size of effect; size of study d. p value; test statistic